US20170157346A1 - Respiratory therapy assemblies - Google Patents
Respiratory therapy assemblies Download PDFInfo
- Publication number
- US20170157346A1 US20170157346A1 US15/325,456 US201515325456A US2017157346A1 US 20170157346 A1 US20170157346 A1 US 20170157346A1 US 201515325456 A US201515325456 A US 201515325456A US 2017157346 A1 US2017157346 A1 US 2017157346A1
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- US
- United States
- Prior art keywords
- restrictor
- respiratory therapy
- inhalation
- flow
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M16/0006—Accessories therefor, e.g. sensors, vibrators, negative pressure with means for creating vibrations in patients' airways
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0866—Passive resistors therefor
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/00058—Mechanical means for varying the resistance
- A63B21/00069—Setting or adjusting the resistance level; Compensating for a preload prior to use, e.g. changing length of resistance or adjusting a valve
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/00196—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using pulsed counterforce, e.g. vibrating resistance means
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/18—Exercising apparatus specially adapted for particular parts of the body for improving respiratory function
Definitions
- This invention relates to respiratory therapy assemblies of the kind including a respiratory therapy device of the kind having a mechanism through which the patient exhales arranged to produce an oscillating resistance, to breathing through the device.
- Vibratory respiratory positive expiratory pressure (V-PEP) or oscillatory PEP (OPEP) devices are modern devices for applying chest physiotherapy. These devices apply chest physiotherapy by providing an alternating resistance to flow and have been found to be particularly effective.
- Acapella a registered trade mark of Smiths Medical
- Smiths Medical Smiths Medical and is described in U.S. Pat. No. 6,581,598, U.S. Pat. No. 6,776,159, U.S. Pat. No. 7,059,324 and U.S. Pat. No. 7,699,054.
- Acapella O-PEP device combines the principles of low-frequency oscillation and positive expiratory pressure by employing a counterweighted lever and magnet to produce oscillatory positive pressures during expiration.
- a respiratory assembly of the above-specified kind, characterised in that the assembly includes a variable restrictor in an inhalation path of the assembly that provides a variable resistance to inhalation flow.
- the restrictor may be provided by a unit separate from the therapy device and connect to a patient port of the therapy device, the restrictor including a mouthpiece through which the patient breathes and the inhalation path through which the air flows during inhalation.
- the restrictor may include a housing with two apertures side by side, one aperture being arranged to connect with the respiratory therapy device and including an expiratory non-return valve, the other aperture opening to atmosphere and including both a manually-displaceable member arranged to obstruct inspiratory flow through the aperture and an inspiratory non-return valve, and both apertures opening into a mouthpiece in the restrictor.
- the restrictor preferably includes a manually-displaceable member in the form of a slider that is manually movable along its length relative to the inhalation path to vary the obstruction to flow along the inhalation path provided by the slider.
- variable restrictor for use in a respiratory therapy assembly according to the above one aspect of the present invention.
- FIG. 1 is a perspective view of the assembly
- FIG. 2 is a perspective exploded view of the therapy device forming a part of the assembly
- FIG. 3 is a front perspective view of the variable inspiratory restrictor of the assembly
- FIG. 4 is a rear perspective view of the restrictor shown in FIG. 3 ;
- FIG. 5 is a front view of the restrictor with the mouthpiece and inspiratory non-return valve removed.
- FIG. 6 is a schematic diagram showing the circuit of the restrictor.
- FIG. 1 With reference first to FIG. 1 there is shown an assembly of a conventional expiratory respiratory therapy device 20 and a novel restrictor R connected to the breathing inlet 7 of the therapy device.
- the restrictor R which is described in detail later, serves to provide a variable restriction to inhalation but provides no significant restriction to exhalation.
- the therapy device 20 is a conventional “Acapella” O-PEP device comprising a rocker assembly 1 contained within an outer housing 2 provided by an upper part 3 and a lower part 4 of substantially semi-cylindrical shape.
- the device 20 is completed by an adjustable dial 5 of circular section.
- the rocker assembly 1 includes an air flow tube 6 with a patient port or breathing inlet 7 at one end and an inspiratory inlet 8 at the opposite end including a one-way valve (not shown) that allows air to flow into the air flow tube 6 but prevents air flowing out through the inspiratory inlet.
- the air flow tube 6 has an outlet opening 10 with a non-linear profile that is opened and closed by a conical valve element 11 mounted on a rocker arm 12 pivoted midway along its length about a transverse axis.
- the air flow tube 6 and housing 2 provide a structure with which the rocker arm 12 is mounted.
- the rocker arm 12 At its far end, remote from the breathing inlet 7 , the rocker arm 12 carries an iron pin 13 that interacts with the magnetic field produced by a permanent magnet (not visible) mounted on an adjustable support frame 14 .
- the magnet arrangement is such that, when the patient is not breathing through the device, the far end of the rocker arm 12 is held down such that its valve element 11 is also held down in sealing engagement with the outlet opening 10 .
- a cam follower projection 15 at one end of the support frame 14 locates in a cam slot 16 in the dial 5 such that, by rotating the dial, the support frame 14 , with its magnet, can be moved up or down to alter the strength of the magnetic field interacting with the iron pin 13 .
- the dial 5 enables the frequency of operation and the resistance to flow of air through the device to be adjusted.
- Other O-PEP devices may have different setting arrangements for adjusting operation of the device and may be graduated in other ways, such as in frequency.
- the inspiratory or inhalation path through the device 20 provided by the inspiratory inlet 8 is, in fact, not needed in the present assembly because the variable restrictor R provides an inhalation path in the manner described below.
- the restrictor R includes a plastics housing 100 with an oval formation 101 at its right-hand end and a rectangular formation 102 at its left-hand end.
- the housing 100 has a flat front surface 103 and a flat rear surface 104 .
- a tubular coupling 105 projects from the rear surface 104 of the oval formation 101 .
- the internal diameter of the coupling 105 is chosen to form a secure air-tight fit on the outside of the breathing inlet 7 of the therapy device 20 .
- the restrictor R also includes a mouthpiece 110 that is oval in section and tapers along its length from a forward, relatively wide end 111 , which is attached around the front surface 103 of the oval formation 101 .
- the opposite end 112 of the mouthpiece 110 is less wide and is open, being adapted to be received in the mouth of the patient.
- the mouthpiece 110 could be of a slightly deformable material to allow a better sealing fit with the patient's mouth.
- the housing 100 has a first circular, expiratory aperture 113 extending through it between the front and rear surfaces 103 and 104 in alignment with the centre of the coupling 105 .
- the aperture 113 supports an expiratory non-return valve 114 , such as a flexible flap valve, which allows air to flow from the restrictor R into the therapy device 20 but prevents any substantial flow in the opposite direction.
- the housing 100 also has a second circular, inspiratory aperture 115 extending through the housing and located to one side of the first aperture 113 within the oval formation 101 .
- the restrictor R also includes a slider 117 in the form of a generally rectangular plate extending laterally of the housing 20 through a slot 118 in its left-hand end so that the left-hand end 119 of the slider projects from the housing and its right-hand end 120 extends within the housing across the bore of the inspiratory aperture 115 .
- the projecting, left-hand end of the slider 117 has a finger grip on its forward surface in the form a shallow depression 121 and, to its right, a stop in the form of a raised lip 122 that limits the extent by which the slider can be pushed inwardly into the housing 100 .
- the slider 117 also has a similar stop (not visible) within the housing 100 that limits how far out the slider can be pulled.
- the right-hand end 120 of the slider 117 is curved with a semi-circular shape of the same diameter as the inspiratory aperture 115 . When the slider 117 is pushed full into the housing 20 its forward, right-hand end 120 engages the curved side of the bore through the aperture 115 substantially to block all gas flow through the aperture.
- the slider 117 When the slider 117 is pulled fully outwardly, its forward, right-hand end 120 is fully displaced out of the bore through the inspiratory aperture 115 to allow a maximum free air flow through the aperture. It is, however, not essential that the slider 117 be movable between a fully closed and fully open position, only that the slider be movable to allow a variation in the restriction to inspiratory flow through the aperture 115 to suit the particular patient or range of patients.
- the slider 117 is preferably marked in some way to allow the patient to move it to a desired position suitable for the therapy.
- FIG. 6 illustrates the circuit provided by the restrictor R, which has an inhalation path 200 and an exhalation path 201 that both connect with the mouthpiece 110 .
- the inhalation path 200 includes a variable flow restrictor 202 provided by the slider 117 movable across the aperture 115 . This connects with the mouthpiece 110 via the inspiratory non-return valve 116 .
- the exhalation path 201 connects the mouthpiece 110 to the inlet of the therapy device 20 via the expiratory non-return valve 114 .
- variable resistance to inhalation flow could be provided, such as, for example, by an arrangement including a rotatable plate with a slot of varying width or with apertures of different diameters or by an arrangement involving compressing and releasing a clamp on a compliant flow tube.
- the non-return valve 114 in the exhalation path 201 prevent air being drawn in through the aperture 113 from the therapy device 20 .
- the non-return valve 116 in the inhalation path 200 closes, preventing any air flowing out along this path. Instead, the expiratory pressure is applied to the breathing inlet 7 of the therapy device 20 and from there via the flow tube 6 to the underside of the valve element 11 on the rocker arm 12 . This causes the valve element 11 to be lifted up out of the opening 10 against the magnetic attraction, thereby allowing air to flow out to atmosphere.
- the opening 10 has a non-linear profile, which causes the effective discharge area to increase as the far end of the rocker arm 12 lifts, thereby allowing the arm to fall back down and close the opening.
- the rocker arm 12 will rise and fall repeatedly as the opening 10 is opened and closed, causing a vibratory, alternating or oscillating interruption to expiratory breath flow through the device.
- the user adjusts the settings of the position of the slider 117 in the restrictor R and the setting of the dial 5 controlling frequency and exhalation resistance to achieve maximum therapeutic benefit for the particular user according to his lung compliance and resistance.
- the settings are preferably such as to maximise the shear forces applied to sputum in a direction tending to drive sputum out of the lungs compared with the forces in the opposite direction.
- the present invention overcomes the problem of existing expiratory therapy devices in that they do not have provision to adjust the restriction to inspiratory flow, thereby either providing too high a resistance to flow for weaker patients or too low a resistance to flow for patients that would benefit from a higher inspiratory resistance.
- the present invention has the additional advantage that the restrictor can be used to provide a variable resistance to inspiratory flow with conventional respiratory therapy devices.
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Abstract
Description
- This invention relates to respiratory therapy assemblies of the kind including a respiratory therapy device of the kind having a mechanism through which the patient exhales arranged to produce an oscillating resistance, to breathing through the device.
- Patients with respiratory system diseases (such as asthma, COPD, cystic fibrosis or the like) may suffer from hyper-secretion of mucus as a prominent pathophysiological feature. Moreover, those patients with hyper-secretion often also have impaired mucus transport. This imbalance between mucus transport and secretion results in mucus retention in the respiratory system.
- Vibratory respiratory positive expiratory pressure (V-PEP) or oscillatory PEP (OPEP) devices are modern devices for applying chest physiotherapy. These devices apply chest physiotherapy by providing an alternating resistance to flow and have been found to be particularly effective. One example of such apparatus is sold under the trade mark Acapella (a registered trade mark of Smiths Medical) by Smiths Medical and is described in U.S. Pat. No. 6,581,598, U.S. Pat. No. 6,776,159, U.S. Pat. No. 7,059,324 and U.S. Pat. No. 7,699,054. Other vibratory respiratory therapy apparatus is available, such as “Quake” manufactured by Thayer, “AeroPEP” manufactured by Monaghan, “TheraPEP” manufactured by Smiths Medical, “IPV Percussionator” manufactured by Percussionaire Corp, and the “Flutter” and “Lung Flute” devices, amongst others. These devices are used by patients who suffer from mucus hyper-secretions and retention to help them clear the secretions from their lungs. The Acapella O-PEP device combines the principles of low-frequency oscillation and positive expiratory pressure by employing a counterweighted lever and magnet to produce oscillatory positive pressures during expiration. This generated oscillating positive pressure works by mechanically reducing the viscoelasticity of the sputum by breaking down the bonds of mucus macromolecules which, in turn, enhances mucociliary clearance. It is thought that the effectiveness of mucus clearance is dependent on maximizing the net shear forces applied to sputum. It is also important that the shear forces are applied in the appropriate direction to move mucus out of the lungs. It is believed that if the flow acceleration during the inhalation phase could be limited it would minimise the retreat of mucus that has been moved out during the expiratory phase.
- It is an object of the present invention to provide an alternative respiratory therapy device.
- According to one aspect of the present invention there is provided a respiratory assembly of the above-specified kind, characterised in that the assembly includes a variable restrictor in an inhalation path of the assembly that provides a variable resistance to inhalation flow.
- The restrictor may be provided by a unit separate from the therapy device and connect to a patient port of the therapy device, the restrictor including a mouthpiece through which the patient breathes and the inhalation path through which the air flows during inhalation. The restrictor may include a housing with two apertures side by side, one aperture being arranged to connect with the respiratory therapy device and including an expiratory non-return valve, the other aperture opening to atmosphere and including both a manually-displaceable member arranged to obstruct inspiratory flow through the aperture and an inspiratory non-return valve, and both apertures opening into a mouthpiece in the restrictor. The restrictor preferably includes a manually-displaceable member in the form of a slider that is manually movable along its length relative to the inhalation path to vary the obstruction to flow along the inhalation path provided by the slider.
- According to another aspect of the present invention there is provided a variable restrictor for use in a respiratory therapy assembly according to the above one aspect of the present invention.
- A respiratory therapy assembly according to the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
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FIG. 1 is a perspective view of the assembly; -
FIG. 2 is a perspective exploded view of the therapy device forming a part of the assembly; -
FIG. 3 is a front perspective view of the variable inspiratory restrictor of the assembly; -
FIG. 4 is a rear perspective view of the restrictor shown inFIG. 3 ; -
FIG. 5 is a front view of the restrictor with the mouthpiece and inspiratory non-return valve removed; and -
FIG. 6 is a schematic diagram showing the circuit of the restrictor. - With reference first to
FIG. 1 there is shown an assembly of a conventional expiratoryrespiratory therapy device 20 and a novel restrictor R connected to thebreathing inlet 7 of the therapy device. The restrictor R, which is described in detail later, serves to provide a variable restriction to inhalation but provides no significant restriction to exhalation. - With reference now to
FIG. 2 , thetherapy device 20 is a conventional “Acapella” O-PEP device comprising a rocker assembly 1 contained within an outer housing 2 provided by anupper part 3 and a lower part 4 of substantially semi-cylindrical shape. Thedevice 20 is completed by anadjustable dial 5 of circular section. The rocker assembly 1 includes anair flow tube 6 with a patient port orbreathing inlet 7 at one end and an inspiratory inlet 8 at the opposite end including a one-way valve (not shown) that allows air to flow into theair flow tube 6 but prevents air flowing out through the inspiratory inlet. Theair flow tube 6 has an outlet opening 10 with a non-linear profile that is opened and closed by aconical valve element 11 mounted on arocker arm 12 pivoted midway along its length about a transverse axis. Theair flow tube 6 and housing 2 provide a structure with which therocker arm 12 is mounted. At its far end, remote from thebreathing inlet 7, therocker arm 12 carries aniron pin 13 that interacts with the magnetic field produced by a permanent magnet (not visible) mounted on anadjustable support frame 14. The magnet arrangement is such that, when the patient is not breathing through the device, the far end of therocker arm 12 is held down such that itsvalve element 11 is also held down in sealing engagement with the outlet opening 10. Acam follower projection 15 at one end of thesupport frame 14 locates in acam slot 16 in thedial 5 such that, by rotating the dial, thesupport frame 14, with its magnet, can be moved up or down to alter the strength of the magnetic field interacting with theiron pin 13. Thedial 5 enables the frequency of operation and the resistance to flow of air through the device to be adjusted. Other O-PEP devices may have different setting arrangements for adjusting operation of the device and may be graduated in other ways, such as in frequency. - The inspiratory or inhalation path through the
device 20 provided by the inspiratory inlet 8 is, in fact, not needed in the present assembly because the variable restrictor R provides an inhalation path in the manner described below. - With reference now to
FIGS. 3 to 6 , the restrictor R includes a plastics housing 100 with anoval formation 101 at its right-hand end and arectangular formation 102 at its left-hand end. Thehousing 100 has aflat front surface 103 and a flatrear surface 104. Atubular coupling 105 projects from therear surface 104 of theoval formation 101. The internal diameter of thecoupling 105 is chosen to form a secure air-tight fit on the outside of thebreathing inlet 7 of thetherapy device 20. The restrictor R also includes amouthpiece 110 that is oval in section and tapers along its length from a forward, relativelywide end 111, which is attached around thefront surface 103 of theoval formation 101. Theopposite end 112 of themouthpiece 110 is less wide and is open, being adapted to be received in the mouth of the patient. Themouthpiece 110 could be of a slightly deformable material to allow a better sealing fit with the patient's mouth. Thehousing 100 has a first circular,expiratory aperture 113 extending through it between the front andrear surfaces coupling 105. Theaperture 113 supports an expiratorynon-return valve 114, such as a flexible flap valve, which allows air to flow from the restrictor R into thetherapy device 20 but prevents any substantial flow in the opposite direction. Thehousing 100 also has a second circular,inspiratory aperture 115 extending through the housing and located to one side of thefirst aperture 113 within theoval formation 101. Thisaperture 115 is covered by an inspiratorynon-return valve 116, such as a flexible flap valve, that allows air to be drawn through the aperture into themouthpiece 110 but substantially prevents air flow in the opposite direction. The restrictor R also includes aslider 117 in the form of a generally rectangular plate extending laterally of thehousing 20 through a slot 118 in its left-hand end so that the left-hand end 119 of the slider projects from the housing and its right-hand end 120 extends within the housing across the bore of theinspiratory aperture 115. The projecting, left-hand end of theslider 117 has a finger grip on its forward surface in the form ashallow depression 121 and, to its right, a stop in the form of a raisedlip 122 that limits the extent by which the slider can be pushed inwardly into thehousing 100. Theslider 117 also has a similar stop (not visible) within thehousing 100 that limits how far out the slider can be pulled. The right-hand end 120 of theslider 117 is curved with a semi-circular shape of the same diameter as theinspiratory aperture 115. When theslider 117 is pushed full into thehousing 20 its forward, right-hand end 120 engages the curved side of the bore through theaperture 115 substantially to block all gas flow through the aperture. When theslider 117 is pulled fully outwardly, its forward, right-hand end 120 is fully displaced out of the bore through theinspiratory aperture 115 to allow a maximum free air flow through the aperture. It is, however, not essential that theslider 117 be movable between a fully closed and fully open position, only that the slider be movable to allow a variation in the restriction to inspiratory flow through theaperture 115 to suit the particular patient or range of patients. Theslider 117 is preferably marked in some way to allow the patient to move it to a desired position suitable for the therapy. -
FIG. 6 illustrates the circuit provided by the restrictor R, which has aninhalation path 200 and anexhalation path 201 that both connect with themouthpiece 110. Theinhalation path 200 includes avariable flow restrictor 202 provided by theslider 117 movable across theaperture 115. This connects with themouthpiece 110 via the inspiratorynon-return valve 116. Theexhalation path 201 connects themouthpiece 110 to the inlet of thetherapy device 20 via the expiratorynon-return valve 114. - It will be appreciated that there are many alternative arrangements by which a variable resistance to inhalation flow could be provided, such as, for example, by an arrangement including a rotatable plate with a slot of varying width or with apertures of different diameters or by an arrangement involving compressing and releasing a clamp on a compliant flow tube.
- When the patient inhales through the
mouthpiece 110 air is drawn along theinhalation path 200 through the restrictor R, thenon-return valve 114 in theexhalation path 201 preventing air being drawn in through theaperture 113 from thetherapy device 20. When the patient exhales, thenon-return valve 116 in theinhalation path 200 closes, preventing any air flowing out along this path. Instead, the expiratory pressure is applied to thebreathing inlet 7 of thetherapy device 20 and from there via theflow tube 6 to the underside of thevalve element 11 on therocker arm 12. This causes thevalve element 11 to be lifted up out of theopening 10 against the magnetic attraction, thereby allowing air to flow out to atmosphere. Theopening 10 has a non-linear profile, which causes the effective discharge area to increase as the far end of therocker arm 12 lifts, thereby allowing the arm to fall back down and close the opening. As long as the user keeps applying sufficient expiratory pressure, therocker arm 12 will rise and fall repeatedly as theopening 10 is opened and closed, causing a vibratory, alternating or oscillating interruption to expiratory breath flow through the device. Further information about the construction and operation of the device can be found in U.S. Pat. No. 6,581,598, the contents of which are hereby incorporated into the present application. - The user adjusts the settings of the position of the
slider 117 in the restrictor R and the setting of thedial 5 controlling frequency and exhalation resistance to achieve maximum therapeutic benefit for the particular user according to his lung compliance and resistance. The settings are preferably such as to maximise the shear forces applied to sputum in a direction tending to drive sputum out of the lungs compared with the forces in the opposite direction. - The present invention overcomes the problem of existing expiratory therapy devices in that they do not have provision to adjust the restriction to inspiratory flow, thereby either providing too high a resistance to flow for weaker patients or too low a resistance to flow for patients that would benefit from a higher inspiratory resistance. The present invention has the additional advantage that the restrictor can be used to provide a variable resistance to inspiratory flow with conventional respiratory therapy devices.
Claims (6)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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GB1412867.2 | 2014-07-19 | ||
GBGB1412867.2A GB201412867D0 (en) | 2014-07-19 | 2014-07-19 | Respiratory therapy devices |
PCT/GB2015/000178 WO2016012740A1 (en) | 2014-07-19 | 2015-06-12 | Respiratory therapy assemblies |
Publications (1)
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US20170157346A1 true US20170157346A1 (en) | 2017-06-08 |
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ID=51494859
Family Applications (1)
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US15/325,456 Abandoned US20170157346A1 (en) | 2014-07-19 | 2015-06-12 | Respiratory therapy assemblies |
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US (1) | US20170157346A1 (en) |
EP (1) | EP3169412B1 (en) |
CA (1) | CA2954592A1 (en) |
GB (1) | GB201412867D0 (en) |
WO (1) | WO2016012740A1 (en) |
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US20170028161A1 (en) * | 2015-07-30 | 2017-02-02 | Trudell Medical International | Combined respiratory muscle training and oscillating positive expiratory pressure device |
KR101995667B1 (en) * | 2018-04-05 | 2019-07-02 | 부산가톨릭대학교 산학협력단 | Breathing exercise assist tools for speech-language pathology |
CN113648619A (en) * | 2021-09-26 | 2021-11-16 | 重庆上品益生电子商务有限公司 | Breathing training device |
US11464925B2 (en) | 2018-06-04 | 2022-10-11 | Trudell Medical International | Positive air pressure therapy device, kit and methods for the use and assembly thereof |
WO2023285773A1 (en) * | 2021-07-15 | 2023-01-19 | Smiths Medical International Limited | Respiratory therapy devices |
USD1035880S1 (en) * | 2021-05-28 | 2024-07-16 | Evolved, Llc | Respiratory trainer |
US12076615B2 (en) | 2022-01-20 | 2024-09-03 | Trudell Medical International Inc. | Combined respiratory muscle training and oscillating positive expiratory pressure device |
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US8539951B1 (en) | 2008-05-27 | 2013-09-24 | Trudell Medical International | Oscillating positive respiratory pressure device |
US8327849B2 (en) | 2008-10-28 | 2012-12-11 | Trudell Medical International | Oscillating positive expiratory pressure device |
US8485179B1 (en) | 2009-02-23 | 2013-07-16 | Trudell Medical International | Oscillating positive expiratory pressure device |
US9149589B2 (en) | 2009-02-23 | 2015-10-06 | Trudell Medical International | Method and device for performing orientation dependent oscillating positive expiratory pressure therapy |
PT2717953T (en) | 2011-06-06 | 2018-11-16 | Trudell Medical Int | Oscillating positive expiratory pressure device |
US9517315B2 (en) | 2012-11-30 | 2016-12-13 | Trudell Medical International | Oscillating positive expiratory pressure device |
EP3019137B1 (en) | 2013-07-12 | 2019-02-06 | Trudell Medical International | Huff cough simulation device |
US9849257B2 (en) | 2013-08-22 | 2017-12-26 | Trudell Medical International | Oscillating positive respiratory pressure device |
US10363383B2 (en) | 2014-02-07 | 2019-07-30 | Trudell Medical International | Pressure indicator for an oscillating positive expiratory pressure device |
US10004872B1 (en) | 2015-03-06 | 2018-06-26 | D R Burton Healthcare, Llc | Positive expiratory pressure device having an oscillating valve |
ES2855373T3 (en) | 2015-12-04 | 2021-09-23 | Trudell Medical Int | Forced Expiration Cough Simulation Device |
CA3059532A1 (en) | 2017-05-03 | 2018-11-08 | Trudell Medical International | Combined oscillating positive expiratory pressure therapy and huff cough simulation device |
US10953278B2 (en) | 2018-02-02 | 2021-03-23 | Trudell Medical International | Oscillating positive expiratory pressure device |
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US20170028161A1 (en) * | 2015-07-30 | 2017-02-02 | Trudell Medical International | Combined respiratory muscle training and oscillating positive expiratory pressure device |
US10449324B2 (en) * | 2015-07-30 | 2019-10-22 | Trudell Medical International | Combined respiratory muscle training and oscillating positive expiratory pressure device |
US11260197B2 (en) * | 2015-07-30 | 2022-03-01 | Trudell Medical International | Combined respiratory muscle training and oscillating positive expiratory pressure device |
KR101995667B1 (en) * | 2018-04-05 | 2019-07-02 | 부산가톨릭대학교 산학협력단 | Breathing exercise assist tools for speech-language pathology |
US11464925B2 (en) | 2018-06-04 | 2022-10-11 | Trudell Medical International | Positive air pressure therapy device, kit and methods for the use and assembly thereof |
USD1035880S1 (en) * | 2021-05-28 | 2024-07-16 | Evolved, Llc | Respiratory trainer |
WO2023285773A1 (en) * | 2021-07-15 | 2023-01-19 | Smiths Medical International Limited | Respiratory therapy devices |
CN113648619A (en) * | 2021-09-26 | 2021-11-16 | 重庆上品益生电子商务有限公司 | Breathing training device |
US12076615B2 (en) | 2022-01-20 | 2024-09-03 | Trudell Medical International Inc. | Combined respiratory muscle training and oscillating positive expiratory pressure device |
Also Published As
Publication number | Publication date |
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GB201412867D0 (en) | 2014-09-03 |
EP3169412B1 (en) | 2019-04-24 |
CA2954592A1 (en) | 2016-01-28 |
WO2016012740A1 (en) | 2016-01-28 |
EP3169412A1 (en) | 2017-05-24 |
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